./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sequence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:23:15,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:15,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:15,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:15,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:15,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:15,724 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:15,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:15,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:15,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:15,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:15,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:15,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:15,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:15,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:15,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:15,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:15,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:15,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:15,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:15,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:15,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:15,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:15,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:15,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:15,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:15,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:15,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:15,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:15,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:15,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:15,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:15,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:15,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:15,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:15,763 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:15,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:15,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:15,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:15,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:15,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:15,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:23:15,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:15,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:15,794 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:15,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:15,794 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:15,795 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:23:15,795 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:23:15,795 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:23:15,795 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:23:15,796 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:23:15,796 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:23:15,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:15,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:23:15,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:15,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:15,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:23:15,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:23:15,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:23:15,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:23:15,799 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:23:15,799 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:15,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:23:15,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:15,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:15,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:15,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:15,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:15,801 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:23:15,802 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2ea109607ebd9a0eb298d5042ccc7f2e5bd7dbe [2021-10-11 00:23:16,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:16,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:16,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:16,079 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:16,083 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:16,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-restricted-15/Sequence.c [2021-10-11 00:23:16,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/data/b97994c85/7c2c3a07cf3f475390b39694eab9b99e/FLAGbf2a05c71 [2021-10-11 00:23:16,615 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:16,615 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/sv-benchmarks/c/termination-restricted-15/Sequence.c [2021-10-11 00:23:16,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/data/b97994c85/7c2c3a07cf3f475390b39694eab9b99e/FLAGbf2a05c71 [2021-10-11 00:23:17,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/data/b97994c85/7c2c3a07cf3f475390b39694eab9b99e [2021-10-11 00:23:17,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:17,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:23:17,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:17,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:17,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:17,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68baca86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17, skipping insertion in model container [2021-10-11 00:23:17,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:17,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:17,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:17,210 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:17,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:17,243 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:17,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17 WrapperNode [2021-10-11 00:23:17,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:17,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:17,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:23:17,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:23:17,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:17,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:17,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:17,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:17,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... [2021-10-11 00:23:17,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:17,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:17,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:17,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:17,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:17,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:17,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:17,564 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:17,565 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 00:23:17,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:17 BoogieIcfgContainer [2021-10-11 00:23:17,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:17,568 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:23:17,569 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:23:17,572 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:23:17,573 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:23:17,574 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:23:17" (1/3) ... [2021-10-11 00:23:17,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19d4d936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:23:17, skipping insertion in model container [2021-10-11 00:23:17,577 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:23:17,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:17" (2/3) ... [2021-10-11 00:23:17,578 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19d4d936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:23:17, skipping insertion in model container [2021-10-11 00:23:17,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:23:17,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:17" (3/3) ... [2021-10-11 00:23:17,580 INFO L389 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2021-10-11 00:23:17,645 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:23:17,645 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:23:17,645 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:23:17,646 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:17,646 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:17,646 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:23:17,646 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:17,646 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:23:17,656 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2021-10-11 00:23:17,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-11 00:23:17,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:23:17,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:23:17,677 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:23:17,677 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:23:17,677 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:23:17,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2021-10-11 00:23:17,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-11 00:23:17,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:23:17,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:23:17,679 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:23:17,679 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:23:17,684 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 9#L11-2true [2021-10-11 00:23:17,684 INFO L796 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 9#L11-2true [2021-10-11 00:23:17,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:17,689 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-11 00:23:17,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:17,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228092012] [2021-10-11 00:23:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:17,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:17,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:17,760 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:17,772 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:17,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:17,774 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-10-11 00:23:17,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:17,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134985373] [2021-10-11 00:23:17,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:17,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:17,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:17,789 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:17,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:17,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-11 00:23:17,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:17,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2685313] [2021-10-11 00:23:17,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:17,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:17,805 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:17,806 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:17,849 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:17,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:17,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:17,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:17,850 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:23:17,850 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:17,850 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:17,850 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:17,850 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2021-10-11 00:23:17,850 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:17,850 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:17,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:17,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:17,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:17,944 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:17,945 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:17,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:17,973 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:17,993 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:17,993 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:18,035 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:18,036 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,059 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:18,059 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:18,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:18,095 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:23:18,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:23:18,187 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:23:18,189 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:18,189 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:18,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:18,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:18,189 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:23:18,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,189 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:18,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:18,190 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2021-10-11 00:23:18,190 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:18,190 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:18,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:18,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:18,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:18,294 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:18,298 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:18,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,313 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:18,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:18,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:18,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:18,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:23:18,321 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:23:18,338 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:18,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:18,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:18,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:18,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:18,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:23:18,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:23:18,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:23:18,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:18,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:23:18,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:18,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:18,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:18,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:23:18,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:23:18,445 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:23:18,456 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:23:18,456 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,460 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:23:18,460 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:23:18,460 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:23:18,461 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2021-10-11 00:23:18,481 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:23:18,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:18,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:18,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:18,525 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:23:18,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:18,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:18,541 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-11 00:23:18,542 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2021-10-11 00:23:18,587 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 19 states and 28 transitions. Complement of second has 5 states. [2021-10-11 00:23:18,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-11 00:23:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:23:18,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-10-11 00:23:18,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 1 letters. [2021-10-11 00:23:18,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:18,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-11 00:23:18,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:18,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-11 00:23:18,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:18,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 28 transitions. [2021-10-11 00:23:18,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:23:18,599 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 5 states and 7 transitions. [2021-10-11 00:23:18,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-11 00:23:18,600 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-11 00:23:18,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 7 transitions. [2021-10-11 00:23:18,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:23:18,601 INFO L692 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-11 00:23:18,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 7 transitions. [2021-10-11 00:23:18,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 4. [2021-10-11 00:23:18,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-11 00:23:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-11 00:23:18,626 INFO L715 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2021-10-11 00:23:18,626 INFO L595 BuchiCegarLoop]: Abstraction has 4 states and 6 transitions. [2021-10-11 00:23:18,626 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:23:18,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 6 transitions. [2021-10-11 00:23:18,627 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:23:18,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:23:18,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:23:18,628 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:23:18,628 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:23:18,628 INFO L794 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0;main_~j~0 := 5; 56#L11-2 assume !(main_~i~0 < 100); 57#L13-1 [2021-10-11 00:23:18,628 INFO L796 eck$LassoCheckResult]: Loop: 57#L13-1 assume !!(main_~j~0 < 21);main_~j~0 := 3 + main_~j~0; 57#L13-1 [2021-10-11 00:23:18,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:18,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2021-10-11 00:23:18,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:18,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417512837] [2021-10-11 00:23:18,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:18,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:18,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417512837] [2021-10-11 00:23:18,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:18,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 00:23:18,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537696613] [2021-10-11 00:23:18,661 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:23:18,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:18,662 INFO L82 PathProgramCache]: Analyzing trace with hash 52, now seen corresponding path program 1 times [2021-10-11 00:23:18,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:18,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767856994] [2021-10-11 00:23:18,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:18,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:18,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:18,670 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:18,681 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:18,681 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:18,681 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:18,682 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:18,682 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:23:18,682 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,682 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:18,682 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:18,682 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2021-10-11 00:23:18,682 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:18,682 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:18,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:18,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:18,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:18,731 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:18,731 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:18,781 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:18,782 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,800 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:23:18,800 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:23:18,826 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,864 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:23:18,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:23:18,907 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:23:18,909 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:23:18,909 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:23:18,909 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:23:18,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:23:18,910 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:23:18,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:18,910 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:23:18,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:23:18,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2021-10-11 00:23:18,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:23:18,910 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:23:18,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:18,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:18,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:23:18,962 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:23:18,962 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:19,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:19,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:23:19,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:23:19,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:23:19,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:23:19,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:23:19,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:23:19,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:23:19,043 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:23:19,048 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:23:19,048 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ca8599-86c7-407c-a324-499b63196359/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:23:19,059 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:23:19,059 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:23:19,059 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:23:19,059 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 43 Supporting invariants [] Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:23:19,091 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:23:19,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:19,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:23:19,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:19,120 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:23:19,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:23:19,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:19,121 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-11 00:23:19,121 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4 Second operand 2 states. [2021-10-11 00:23:19,125 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 6 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 5 states and 7 transitions. Complement of second has 2 states. [2021-10-11 00:23:19,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-10-11 00:23:19,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:23:19,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 4 transitions. [2021-10-11 00:23:19,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-11 00:23:19,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:19,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 3 letters. Loop has 1 letters. [2021-10-11 00:23:19,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:19,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-11 00:23:19,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:23:19,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 7 transitions. [2021-10-11 00:23:19,128 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:23:19,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 0 states and 0 transitions. [2021-10-11 00:23:19,129 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:23:19,129 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:23:19,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:23:19,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:23:19,129 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:19,129 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:19,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:19,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 00:23:19,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 00:23:19,133 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2021-10-11 00:23:19,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:19,136 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-10-11 00:23:19,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:23:19,136 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-10-11 00:23:19,137 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:23:19,137 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:23:19,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:23:19,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:23:19,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:23:19,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:23:19,137 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:19,137 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:19,137 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:23:19,138 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:23:19,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:23:19,138 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:23:19,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:23:19,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:23:19 BoogieIcfgContainer [2021-10-11 00:23:19,143 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:23:19,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:19,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:19,144 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:19,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:17" (3/4) ... [2021-10-11 00:23:19,148 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:23:19,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:19,150 INFO L168 Benchmark]: Toolchain (without parser) took 2130.34 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 74.5 MB in the beginning and 102.9 MB in the end (delta: -28.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:19,150 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 109.1 MB. Free memory was 80.3 MB in the beginning and 80.2 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:19,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.04 ms. Allocated memory is still 109.1 MB. Free memory was 74.4 MB in the beginning and 86.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:19,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.11 ms. Allocated memory is still 109.1 MB. Free memory was 86.6 MB in the beginning and 85.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:19,152 INFO L168 Benchmark]: Boogie Preprocessor took 31.31 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 84.6 MB in the end (delta: 502.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:19,153 INFO L168 Benchmark]: RCFGBuilder took 250.74 ms. Allocated memory is still 109.1 MB. Free memory was 84.5 MB in the beginning and 76.2 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:19,154 INFO L168 Benchmark]: BuchiAutomizer took 1575.24 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 76.1 MB in the beginning and 102.9 MB in the end (delta: -26.8 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:19,154 INFO L168 Benchmark]: Witness Printer took 3.84 ms. Allocated memory is still 136.3 MB. Free memory is still 102.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:19,158 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 109.1 MB. Free memory was 80.3 MB in the beginning and 80.2 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 220.04 ms. Allocated memory is still 109.1 MB. Free memory was 74.4 MB in the beginning and 86.6 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.11 ms. Allocated memory is still 109.1 MB. Free memory was 86.6 MB in the beginning and 85.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.31 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 84.6 MB in the end (delta: 502.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 250.74 ms. Allocated memory is still 109.1 MB. Free memory was 84.5 MB in the beginning and 76.2 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1575.24 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 76.1 MB in the beginning and 102.9 MB in the end (delta: -26.8 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.84 ms. Allocated memory is still 136.3 MB. Free memory is still 102.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 4 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...